Not sure if this truly counts, but Echo from DeltaEcho was within inches of being bitten by a Brown snake (down here in Australia we have alot of them, and they are genertally ok if left alone, but will attack if cornered or startled) but was grabbed by a quick thinking and observant friend. She then precede to jump the nearest fence ans saty well away from the cache site ofr a long time!
We did however retrieve the cache!